Andrew Skurka's guy line tensioning system. I always used a quick-release hitch instead of a bowline and a taut line hitch instead of a trucker's hitch -- but the trucker's hitch looks like it would get and keep everything more taut.
A series of articles on better merges with dedicated patch branches rather than cherry-picking from feature branches, with good graphs. I use cherry-pick often on my one-man projects and have confused myself with merge-base in the past, so this is probably a good reference for me to remember.
I'm just now finding out about this guy. Wow. What an absolutely legendary mix of character, courage, talent, and despair. And unlike Peregrinus he didn't have to talk about it for four years to get his nerve up.